M
M
M
E
E
E
R
R
R
C
C
C
U
U
U
R
R
R
Y
Y
Y
U
U
U
S
S
S
E
E
E
R
R
R
M
M
M
A
A
A
N
N
N
U
U
U
A
A
A
L
L
L
48
a. Dot:
A halftone pattern consists of circle dots.
b. Corner
: The dark dot spread from the left upper corner of the pattern result in
a little
triangle shape to imitate a shading effect.
c. Bayer
: A random halftone pattern.
d. 45 degree
: a halftone pattern consists of 45 degree matrix of dot
arrangement
2*2 dithering
4*4 dithering
8*8 dithering
Error Diffusion
2x2 Enhance Dithering 8x8
Enhance
Dithering
Dot Bayer
Corner
45 4*4 dithering
45 6*6 dithering
45 8*8 dithering